Muffler connecter



ug- 31, 1937- A. HAVlLANb 2,091,732

MUFFLER CONNECTER Filed April 16, 1937 kill fic Elma/who? 30 may be made upon removal of one or mor Patented Aug. 31, 1937 7 rs-pr OFFICE MUFFLER OONNECTER Arnold Havilanol, Defiance, Ohio Application April 16,

7 Claims.

My invention has for its object to provide a muffler connecter for connecting a muffler, of the type commonly used for muilling the exhaust pulsations of internal combustion engines, to the engine exhaust pipe and the mufiler tail pipe.

The invention provides a plurality of nested collars of different sizes, one or more of the nested parts being used according to the difierence in size of the sleeve or neck of the muffier and the l pipe to which it is to be connected.

As is well known, engines have different dimensional outlets and exhaust pipes of different sizes that are used to convey the exhaust products from the engine to the muffiers, while the mufiiers have outlet sleeves or necks of certain sizes that often differ from the sizes of the pipes through which the exhaust gases are discharged. Where mufflers are injured and are to be re placed by new mufllers, it is necessary to provide mufflers having large inlets and outlets and provide a reducing connecter to produce a sealing connection between the muffler and the exhaust and the tail pipe originally installed. By my invention, I have provided tightly interfitting' expansible or contractible nested collars having complete cylindrical intersealing parts and have located sets of the nested collars in the ends of the sleeves of the mufilers; whereby the mufflers may be installed and tight pipe fitting connection e of the inner sleeves.

The invention provides a muffler having sets of nested expansible collars located in the ends of the sleeves of the mufiler, the collars of each set having diameters such that they may be tightly nested one within the other and the exterior collar having a dimension such as to interiorly fit the sleeve. When the mufiler is to be connected to the exhaust and tail pipe, through which the exhaust gases pass, one or more of the inner collars may be removed according to the difference in the diameters of the exhaust and discharge pipes and the sleeves of the mufiler so as to produce a tight fit between the connected parts. Preferably, a split clamping ring of the type well known in the art may be located about the inlet and outlet sleeves of the muflier to further secure the parts together.

The invention also provides a plurality of 0 nested collars located in and fitting the muffler sleeve, the end edges of the collars being located substantially in the plane of the end of the mufiler sleeve, the nested collars having interfitting recesses and projections to prevent inward displacement with respect to each other and the projec- 1937, Serial No. 137,312

tions affording means .for ready withdrawal of one or more of the inner collars to produce the desired tight fit about theexhaust or tail pipes.

The invention also provides nested collars which are slotted and which have continuous end edge parts. The portions intermediate the ends of the slots and the end edges of the collars are formed to readily flex and enable expansion of each of the sleeves and maintain elastic interfitting relation with respect to each other and 5 with respect to the end sleeve of the mufiler and also with respect to the ends of the exhaust or tail pipe.

To illustrate a practical application of the invention, I have selected a connecter as an example of the various structures that contain the invention and shall describe the selected connecter hereinafter, it being understood that the details of the connecter may be varied without departing from the spirit of the invention. .ticular connecter selected is shown in the accompanying drawing.

Fig. 1 illustrates a perspective view of an end part of a mufiler and the end of a pipe and the connecter for producing interfitting of the end. portion of the pipe and the mufiier sleeve. Fig. 2 illustrates a view of a section of the connecter, the pipe, and the sleeve shown in Fig. 1. Fig. 3 illustrates interfitting collars, one of which is partially Withdrawn.

As shown in the drawingthe mufiler I is provided at each end with a sleeve 2, one forming the gas inletand the other the :gas outlet. A plurality of nested collars are located in the sleeve. The pipes, such as the pipe 5, through which exhaust gases of the internal combustion engine are discharged, and the mufiler tail pipe are located in the sleeves. The diameter of each sleeve is formed large enough to receive the larger of the pipes that are commercially installed and where the diameter of the outer surface of the pipe 5 is smaller than the sleeve 2, one or more of the inner nested collars l, 8, and H] are removed leaving in the sleeve the collar that will fit the pipe together with the outer of the collars to produce a sealed connection.

The collars are provided with slots II and are formed to have continuous end edge portions that close the ends of the slots. The end portions of the slots are formed Y-shape While the body portion of the slots extend parallel to the axes of the nested collars. The edge portions of the collars intermediate the arms of the parts that form the Y-shaped ends of the slots are recessed as at 12, preferably, to form V-shaped ex:

The par- Cir pansible edge portions I4 of the collars at the ends of the slots. The portions I4 form elastic portions that may be expanded or contracted. without permanent deformation and thus provide an elastic fitting means for tightly fitting the contiguous collars. To render the sleeve 2 flexible, it may be split and a clamping ring I3 may be located on the sleeve to clamp the sleeve and the collars and the pipe.

The portions I5 of the collars intermediate the slots II are provided at their end edges with struck up parts to form protruding portions I! that may be disposed in the V-shaped recesses I2 of the contiguous outer collars. Thus, the collars may be telescoped relative to each other so as to locate the protruding portions H in the recesses I2 and their end edges in a common plane. Preferably but one end edge of each collar is provided with the protruding portions Ill, whereby the inner collars may be removed and also whereby displacement of the nested collars with respect to the end of the sleeve 2 of the mufller will be prevented upon forcing the pipe into the inner of the collars.

Thus, by my invention, mufflers having nested collars located in the sleeves of the mufiler may be furnished to automobile and truck owners or other individuals that desire to replace muffiers used in connection with internal combusticn engines, and when it is desired to establish connection with the exhaust discharge pipes, one or more of the inner sleeves may be withdrawn depending on the diameter of the exhaust pipes that may be in use. In order to produce a tight fit between the mufller and the parts of the exhaust discharge pipes, the pipes may be forced into the inner of the collars and the protruding portions will prevent entrance of the collars into the mufilers and thus enable an exceedingly tight fit. Also, each of the collars being formed elastically expansible by the V-shaped edge portions of the collars formed at the ends of the slots, may be expanded to produce an exceedingly tight fit within the sleeve. If desired, the clamping ring l3 may also be fastened by means of a bolt and nut I8 to clamp and, if desired, contract the collars Ill to secure the pipe.

I claim:

1. In a mufiler sleeve connecter, a plurality of nested collars fitting the sleeve, each of the collars having slots extending parallel to the axes of the collars, and the opposite ends of each of the slots closed by extendible sleeve portions and forming completely integrated slot edges.

2. In a muiiier connecter, a plurality of nested collars fitting the sleeve of the muffler, each of the collars having slots, the collars having end edge portions closing the ends of the slots, and the portions located intermediate the ends of the slots and the edges of the collars bent from the edges of the portions of the collars intermediate the slots to form collar expansible portions.

3. In a mufiier sleeve connecter, a plurality of nested collars fitting the sleeve, each of the collars having slots, and the collars having relatively slender end edge portions closing the ends of the slots and inwardly bent with respect to the slots to form integral collar expansible portions.

4. In a mufiler connecter, a plurality of nested collars, each of the collars having slots, the collars having end edge portions closing the ends of the slots, the portions located intermediate the ends of the slots and the edges of the collars bent from the edges of the portions of the collars intermediate the slots to form sleeve expansible portions, and one end of each of the collars having a projection substantially fitting the bent portions of the contiguous collar.

5. In a muffler sleeve connecter, a plurality of nested collars fitting the sleeve, each of the collars having slots, the collars having bent end edge portions closing the ends of the slots and bent toward central parts of the slot to form integral collar expansible portions, and each of the sleeves having protruding portions fitting the outer edges of the said bent portions.

6. In a muffler sleeve connecter, a plurality of nested collars fitting the sleeve, each of the collars having slots, the collars having recessed end edge portions closing the ends of the slots to form collar expansible portions, and the parts of the collars located intermediate the slots having at their end edges protruding portions fitting the recesses of the contiguous exterior collars.

'7. In a muffler sleeve connecter, a plurality of nested collars fitting the sleeve, each of the collars having slots, the collars having V-shaped end edge portions closing the ends of the slots to form collar expansible portions, and the parts of the collars located intermediate the slots having at their end edges protruding portions fitting the V-shaped recesses of the contiguous exterior collars.

ARNOLD I-IAVILAND. 

